物理学和数学之间的界限并不像我们想象的那么清晰。
In investing, what is comfortable is rarely profitable.
Dealing with failure is easy: Work hard to improve. Success is also easy to handle: You've solved the wrong problem. Work hard to improve.
【释义】:父亲不慈爱,子女就不会孝顺;兄长不友爱,弟弟便不会恭敬。